Front

Why is DNA important?

Back

It serves as the blueprint for traits of all living things.

Front

What are the 4 nitrogen bases?

Back

Adenine, thymine, cytosine, and guanine.

Front

Which units are repeatedly joined together to form a strand of DNA?

Back

Nucleotides.

Front

What sequence of DNA bases would pair with this partial strand: ATG TGA CAG?

Back

TAC ACT GTC.

Front

During replication, what enzyme adds complementary bases?

Back

Polymerase.

Front

What is the structure of DNA?

Back

DNA is a double helix composed of two strands of nucleotides.

Front

What are nucleotides made of?

Back

A phosphate group, a sugar (deoxyribose), and a nitrogenous base.

Front

What is the role of helicase in DNA replication?

Back

Helicase unwinds the DNA double helix.

Front

What is the function of ligase in DNA replication?

Back

Ligase joins Okazaki fragments on the lagging strand.

Front

What is the difference between DNA and RNA?

Back

DNA is double-stranded and contains deoxyribose; RNA is single-stranded and contains ribose.